Improvement in sectional rolls



A. B-.'S-EYMOUR. SECTION'AL ROLLS.

Paten ted June 26,1877.

e F z E k. 0 B

ALFRED B. SEYMOUR, OF PoRTsMOUrH, ASSIGNOR TO J. WILLIAM cens- NUT, OFPOMEROY, OHIO.

IMPROVEMENT IN SECTIONAL ROLLS.

Specification forming part of Letters Patent No. 192,392, dated J une26, 1877; application filed November 16, 1876.

To all whom it may concern:

Be it known that I, ALFRED B. SEYMOUR, of Portsmouth, Scioto county,Ohio, have in vented a new and useful Sectional Roll, of which thefollowing is a specification:

This invention relates to that class of devices commonly known assectional rolls, or, in other words, rolls whose shaping-dies or cuttersare capable of being readily applied to or detached from the cylinderswithin which they are fitted and my improvement comprises a novel methodof securing said dies, so as to prevent them slipping or twisting aroundwithin the circumferential groove of the supporting-cylinders, and atthe same time said shaping-members constitute a practically continuousor uninterrupted die for the rolls.

These dies are composed of two or more segments or sections, eachsection being fur nished with one or more screw-threaded stems orshanks, that pass through suitable radial apertures in the tube, afterwhich nuts are applied to the inner ends of said shanks, therebysecuring the dies immovably within the circumferential groove,previously alluded to. The aforesaid cylinder is open at both ends, andhas fitted within it heads or disks that are keyed fast to thedriving-shaft, which latter occupies an axial position with reference tothe sectional roll, said shaft being rotated by any suitable appliance,such as gearing or otherwise. v

This cylinder and its two heads are locked together, in order that theymay rotate in unison with the driving-shaft or axle of the roll, theconnection between the cylinder and its attached heads being effected inany ap proved manner.

Having'thus indicated the leading features of my sectional roll,I willnow givea detailed description of the same, by referring to theaccompanying drawings, in which- Figure l is a front elevation of myimprove sectional roll, the housings and gears of the same beingomitted. Fig. 2 is a vertical section thereof. Fig. 3 is a verticalsection of the various parts of the sectional roll detached from eachother, the driving shaft being omitted. Fig. 4 is an enlarged transversesec-1 v tion of a portion of the cylinder and its acces-. sories, thesection being taken in the plane of the circumferential groove, and oneof the dies being shown detached from said groove. Figs. 5 and 6represent modifications of the invention.

The principal member of my sectional roll is ahollow cylinder or tube,A,of any-suitable length, diameter, and thickness of material. Thiscylinder may be composed of iron, or steel, or any other suitable metal,and it is furnished with an annular or circumferential groove orchannel, B, and a number of radial apertures b, Whose ofiice willpresently appear. This groove may be of any desired shape in itstranverse section. Seated within this annular groove are sectional orsegmental dies 0, whose outer peripheries are so shaped as to impart thedesired form to the heated bar, blank, or plate when such bar or blankis passed through the rolls.-

In the drawings these dies are shown as provided with a central andV-shaped ridge, 0, for the purpose of forming a V-shaped groove ordepression longitudinally of the heated bar, blank, or plate, but it isevident said dies may be out so as to impart any desired shape orcombinations of forms to the blank, such, for example, as a series ofalter-. nate transverse ridges and valleys, or otherwise. Each segment,or individual die, is furnished with one or more stems or shanks D,screw-threaded at their inner ends, and capable of being passed throughthe radial apertures b, after which nuts d are engaged with saidscrew-threaded stems, as seen in Figs. 2 and 4.

Two or more of such segments may be applied to the groove B, care beingtaken to have their contiguous ends in close contact,

so as to constitute practically a continuous or uninterrupted die aroundthe cylinder or roll A.

The preferred method of attaching this cyl inder to the driving-shaft Eis as follows: Said shaft is preferably a steel bar of any suitablediameter, and has firmly secured to it, with keys ea or other equivalentdevices,

two heads or disks, F F, provided, respectively, with shortinwardly-projecting flanges or hubsff', capable of entering the oppositeends of cylinder A, as seen in Fig. 1'. In order that these heads maydrive the cylinder, the former are provided with tongues or projectionsG, that fit snugly within sockets or grooves g in the ends of saidcylinder, although any other secure method may be employed for couplingthese three members of the sectional roll together. Two tongues willsuflice for each head, but a greater number of them may be employed, ifpreferred.

The projecting ends H H of shaft E constitute the necks or journals ofthe roll, and it is preferred to reduce the diameter of said necks adistance equal to the depth of the keyseats in said shaft. Thisarrangement'obviates the cutting of grooves or channels in said necks.

It is preferred to make the upper roll I in the previously-describedsectional manner; but, assaid roll is not generally furnished with dies,it may be solid.

In the drawings, however, it is represented as composed of a cylinder,I, and two heads, Ff Ff, which are coupled to said cylinder or roll inthe same manner as are the cylinder A and its heads.

This upper roll is represented as having a rectangular pass, i, cut init, as said roll acts only on the back of the blank, which back isgenerally flat or nearly flat.

But this cylinder I may be provided with the segmental dies, and thelower one, A, may have the pass in it. 7

Or both cylinders may be furnished with dies, according to the kind ofbar or blank or plate that is to be rolled in the mill.

The upper cylinder has two collars, J J, with inclined shoulders j j,thereby affording guides for the enlarged diameter K of the lower rollA. Bythis means the two cylinders or rolls A and I are maintained inclose contact with each other, and neither of them can shiftlongitudinally with reference to the other in case the keys 0 0 shouldwork loose.

,To illustrate the advantages incidental to this sectional constructionof rolls, I will suppose that either one of the dies 0 has becomeinjured by-the passage through the train of some foreign substance-such,for example, as a pair of tongs or other implements. As soon as such anaccident occurs, the train of rolls is at once thrown out of gear, andone of the keys 6 is dislodged so as to permit the head F or F to beshifted, after which the appropriate nut is unscrewed from the shank ofthe injured segment or die. The die G is then withrawn from groove B, anew one inserted in its place, the nut screwed onto the stem, the headkeyed up, and the roll is again ready for service.

As these operations can be performed in a few minutes, it is evident agreat saving of time is eii'ected over the old plan of plugging thesolid roll, and then chipping it out to the desired shape.

Another objection to the old-fashioned solid roll is, that the necks arecast onto it, and if but one of the necks breaks from any causewhatever, the entire roll is thereby ren dered useless. Now, my necks,on the contrary, are composed of heavy steel bars, and, therefore, afracture of either one of them is almost impossible; but if such acontingency should occur, a new shaft can be fitted in the heads in afew minutes. Furthermore, the dies being cut in detachable pieces,enables me to produce shapes that could not possibly be cut in thesolid-cast rolls.

In addition to these advantages my roll is much lighter than solid ones,and, consequently, it is capable of being transported in separatesections or pieces, and handled in the millwith the utmost facility.

In the drawings, the housings and gears are omitted from the rolls; butas said housings and gears are the same as in general use in allrolling-mills, further description of them is unnecessary in thisspecification.

Each roll has been shown as provided with but one groove, armed with apractically continuous die; but two or more of such grooves and dies maybe applied to a single roll, which grooves and dies can be so shaped asto gradually reduce the bar to the desired form.

In the modification shown in Fig. 5, the

die 0 is represented as entering some dis tance into the upper roll I,which'arrangement is necessitated by the peculiar shape of the bar orblank to be rolled. This blank is similar in shape to the one patentedby me September 26, 1876, the dies being adapted to produce such anarrangement of heel, toe, and side calks as seen in said Patent No.182,535.

In Fig. 6, a tie-rod, L, is shown for clamping the two headsof the rolltogether, said rod being passed through a perforated lug or lugs, l, onthe inner side of the cylinder. This rod is used in conjunction with thetongues G and sockets g, previously described.

The shanks D d may be omitted, and the dies furnished withlaterally-projecting lugs or ears to receive screws or bolts, wherewithsaid segments 0 can be secured in the groove B; or the dies may beretained in position with keys or other devices.

I claim as my invention- 1. A sectional roll, consisting essentially oftwo heads secured to a driving-shaft, and a cylinder or tube fitted tosaid heads, the cylinder being armed with two or more removable dics orformers, whose contiguous ends abut, substantially as herein describedand set forth.

2. The combination of shaft E, detachable heads F F, grooved cylinder AB, and rether of said cylinders shifting longitudinally in casethehead]? or F should become loose, substantially as herein described andset forth.

In testimony of which invention I hereunto set my hand.

ALFRED B. sEYMoUR.

Witnesses:

JAMES H. LAYMAN, L. H. BOND.

